Charging Display Device for Selecting Correct Stand
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Solution Overview
Problem
In charging systems for vehicles, users often erroneously select the wrong charging stand, leading to unintended vehicles being charged, as there is no effective mechanism to prevent incorrect selection among multiple charging stands.
Innovation Solution
A display device and method that presents a selection screen emphasizing the most likely and recently connected power transfer units, excluding units that are currently charging or have completed charging, to guide users in selecting the correct charging stand for their vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple charging stands are installed to charge multiple vehicles simultaneously, then charging capacity and productivity are improved, but the risk of user selection error increases leading to wrong vehicle charging
Solution Approach 1:
The display unit visually distinguishes the most recently connected power transfer unit by emphasizing its presentation (e.g., highlighting, coloring, or positioning), enabling users to quickly identify the correct charging stand among multiple options and prevent selection errors
Solution Approach 2:
The system provides visual feedback by displaying the connection status and emphasizing the most recent connection, allowing users to confirm their selection before charging starts, thereby preventing wrong vehicle charging
2Adaptability or versatility
If all power transfer units are presented as selection candidates, then user flexibility is improved, but the complexity of the selection interface increases and may lead to user confusion
Solution Approach 1:
The display unit applies different presentation qualities to different power transfer units: the most recently connected unit is emphasized visually, while other units are presented in a standard manner, helping users quickly identify the intended target without overwhelming interface complexity
Solution Approach 2:
The system extracts and emphasizes only the most relevant information (the most recently connected power transfer unit) from the complete set of available units, reducing cognitive load while maintaining full selection capability
Data Source
AI summary
A first controller performs a process including: specifying a selection candidate for a charging stand when one of cables is connected to a vehicle; controlling a display unit to present a selection screen; specifying a selected number when a selection manipulation is performed; and outputting a charging control execution command to a charging stand corresponding to the selected number.